Month: December 2022

Impact of Soy-Cow’s mixed milk enzyme modified cheese on bread aroma was written by Ali, Barkat;Khan, Kiran Yasmin;Majeed, Hamid;Jin, Yamei;Xu, Dan;Rao, Zhiming;Xu, Xueming. And the article was included in LWT–Food Science and Technology in 2022.Electric Literature of C11H22O2 The following contents are mentioned in the article:

The effect of spray-dried Soy-Cow’s mixed milk enzyme modified (SC-EM) cheese on wheat dough properties and bread aroma was evaluated at either 0.1, 0.5, 1.0, 1.5 or 2.0% (weight/weight). Significant accumulation of amino acids and peptides of dough were noted as SC-EM cheese levels increased. After baking a total of 118 volatile compounds (VCs) were identified in breads having aldehydes, alcs., esters and acids in major proportions. Higher contents of Maillard product 3-hydroxy-2-butanone, 2-methyl-1-propanol, phenylethyl alc., undecane, L-limonene, 2-pentyl furan and lipid oxidation compounds hexanoic acid Et ester, octanoic acid Et ester, decanoic acid Et ester, butanoic acid, hexanoic acid and octanoic acid were observed Isoamyl alc., lactic acid Et ester, Et sorbate and sorbic acid were the newly identified VCs. These results revealed that SC-EM cheese could be used as improver in dough and contribution to bread aroma. Thus, SC-EM cheese has been proposed to be included in fortified bakery products. This study involved multiple reactions and reactants, such as Isopentyl hexanoate (cas: 2198-61-0Electric Literature of C11H22O2).

Isopentyl hexanoate (cas: 2198-61-0) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Electric Literature of C11H22O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Volatile compounds released by acid hydrolysis in jackfruit (Artocarpus heterophyllus Lam.). A comparative study by using SDE and HS-SPME techniques was written by Barros-Castillo, Julio Cesar;Calderon-Santoyo, Montserrat;Garcia-Magana, Maria de Lourdes;Calderon-Chiu, Carolina;Ragazzo-Sanchez, Juan Arturo. And the article was included in Journal of Food Composition and Analysis in 2022.Application In Synthesis of Isopentyl hexanoate The following contents are mentioned in the article:

The volatile compounds of jackfruit (Artocarpus heterophyllus Lam.) released using acid hydrolysis were comprehensively investigated by using simultaneous distillation-extraction (SDE) and headspace-solid phase microextraction (HS-SPME); both coupled to gas chromatog.-mass spectrometry (GC-MS). Hydrolyzes were carried out at pH 3 to promote the release of aglycons and pH 7 to inhibit enzymic reactions. Volatile profiles were analyzed by extraction technique. Besides, the aroma potential (AP) of jackfruit was determined Sixty-nine volatile compounds were identified. Limonene, pentyl 3-methylbutanoate, 1-butanol, Bu 3-methylbutanoate, butanal, and β-cyclocitral were the prominent compounds The AP of jackfruit was 3.1 and 3.8 mg/kg by utilizing SDE and HS-SPME resp. The AP of jackfruit released by acid hydrolysis suggests its use as raw material for foodstuffs prepared under thermal and acid conditions at low pH values, promoting the release of aroma precursors and enhancing the flavor of the final product. This study involved multiple reactions and reactants, such as Isopentyl hexanoate (cas: 2198-61-0Application In Synthesis of Isopentyl hexanoate).

Isopentyl hexanoate (cas: 2198-61-0) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Application In Synthesis of Isopentyl hexanoate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Effects of processing on the chemical, physicochemical, enzymatic, and volatile metabolic composition of pitaya (Hylocereus polyrhizus (F.A.C. Weber) Britton & Rose) was written by Santos, Glauber Batista Moreira;Dionisio, Ana Paula;Magalhaes, Hilton Cesar Rodrigues;Pinto de Abreu, Fernando Antonio;Lira, Sandra Machado;Viana de Lima, Ana Carolina;Silvestre da Silva, Gisele;Guedes, Jhonyson Arruda Carvalho;Araujo, Idila Maria da Silva;Artur, Adriana Guirado;Pontes, Dorasilvia Ferreira;Zocolo, Guilherme Juliao. And the article was included in Food Research International in 2020.Formula: C8H16O2 The following contents are mentioned in the article:

The effects of processing on the chem., physicochem., enzymic, and volatile metabolic composition of pitaya pulp were assessed for the first time. To this end, the following treatments to obtain pitaya pulp were evaluated: Treatment A (TA, pulp processing without ascorbic acid), Treatment B (TB, whole fruit processing with ascorbic acid), and Control (whole fruit processing without ascorbic acid). The treatment employed in TB resulted in low polyphenol oxidase and peroxidase activity, and no significant chem. or physicochem. alterations in most parameters evaluated. In addition, TB presents high yields and fiber content compared to the TA or Control. For metabolic anal., Gas Chromatog.-Mass Spectrometry (GC-MS) was effective for the simultaneous determination of 80 volatile metabolites in pitaya. Chemometric analyses was used to efficiently distinguish the volatile compounds of each treatment, and demonstrated that TB presents an interesting volatile profile due the conservation or agregation of compounds This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0Formula: C8H16O2).

Methyl heptanoate (cas: 106-73-0) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Formula: C8H16O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Acetylation of cellulose – Another pathway of natural cellulose aging during library storage of books and papers was written by Potthast, Antje;Ahn, Kyujin;Becker, Manuel;Eichinger, Thomas;Kostic, Mirjana;Boehmdorfer, Stefan;Jeong, Myung Joon;Rosenau, Thomas. And the article was included in Carbohydrate Polymers in 2022.Computed Properties of C16H22O11 The following contents are mentioned in the article:

Gaseous acetic acid is formed under conditions of storage of historic paper objects. Its presence not only promotes hydrolytic cleavage of cellulose, but also causes acetylation of the cellulosic material to very small degree. The acetylation reaction proceeds under ambient conditions and without catalyst. Different anal. methods were used to prove the presence of organic acetates on cellulosic paper matrixes. DESI-MS in combination with ²H-isotopic labeling showed the presence of sugar fragments with different acetylation patterns. A method based on Zemplen saponification was applied and worked also in the presence of a large excess of acetic acid and/or inorganic acetates. The acetylation effect was quantified for model papers and original, naturally aged paper samples. While cellulose acetylation was clearly proven to be another general pathway of paper aging, further studies of this acetylation phenomenon are needed with regard to conservational aspects and suitable paper storage conditions. This study involved multiple reactions and reactants, such as (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3Computed Properties of C16H22O11).

(2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Computed Properties of C16H22O11

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

New hypoglycemic agents selected by molecular topology was written by Calabuig, C.;Anton-Fos, G. M.;Galvez, J.;Garcia-Domenech, R.. And the article was included in International Journal of Pharmaceutics in 2004.Computed Properties of C17H15NO5 The following contents are mentioned in the article:

New compounds showing hypoglycemic activity have been designed through a computer aided method based on quant. structure-activity relationship (QSAR) and mol. connectivity. After calculation of topol. indexes for a set of 89 compounds including active and inactive with regards to hypoglycemic action, linear discriminant anal. was performed so that a useful model to predict such an activity was achieved. Later on, the discriminant model was applied on a huge database so that fourteen compounds were selected as potential new hypoglycemics. From them, just five were finally selected for exptl. test on expected hypoglycemic activity. Among the selected compounds, L-arabitol, Acid blue 161, 1,4-butanediol diglycidyl ether and Acid red 151 stand out, which are comparable in potency to standard drugs such as tolbutamide. Acid blue has a glycemia profile similar to that of tolbutamide but does not lead to a severe hypoglycemic condition, while the profile of the other agents is near normality. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Computed Properties of C17H15NO5).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Computed Properties of C17H15NO5

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Development of novel carbohydrate based compounds for better antipyretic activity was written by Grover, Parul;Singh, Jitender;Mehta, Lovekesh;Kapoor, Garima;Nagarajan, K.. And the article was included in International Journal of Pharmaceutical Sciences and Research in 2021.Synthetic Route of C16H22O11 The following contents are mentioned in the article:

Carbohydrate-based therapeutics are extremely potent, and many carbohydrate-based drugs are in the stage of preclin. or clin. trials. There is a growing interest in developing carbohydrate analogs for novel drug discovery as most of the recently used carbohydrate drugs display significant pharmacol. activities and low toxicity. Also, the search for an antipyretic drug is a never-ending challenge. This research aimed at the development and synthesis of a series of amide-linked sugars (PV1-PV20) by coupling brominated sugars with varying amino acids coupled with nicotinic acid (GP1-GP10). Characterization of the derivatives synthesized was done by IR and NMR Spectroscopy. These congeners were tested to analyze their antipyretic potential, and eight analogs out of twenty showed significant antipyretic activity. Thus, the carbohydrate-based amide derivatives show important action in obstruction and therapy of fever. Further work on these lines may play an important role in maintaining good health at a low cost. This study involved multiple reactions and reactants, such as (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3Synthetic Route of C16H22O11).

(2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Synthetic Route of C16H22O11

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Production of bio-oil from algal biomass and its upgradation to biodiesel using CaO-based heterogeneous catalysts was written by Malpani, M.;Varma, A. K.;Mondal, P.. And the article was included in International Journal of Green Energy in 2016.COA of Formula: C20H40O2 The following contents are mentioned in the article:

The present article deals with the production of bio-oil from algal biomass as well as the preparation and characterization of noble CaO-based heterogeneous catalyst for upgradation of bio-oil to biodiesel. The bio-oil has been extracted from algal biomass using hexane as solvent in soxhlet apparatus and upgraded to biodiesel by transesterification using noble CaO-based heterogeneous catalysts. Catalyst with TiO₂:CaO molar ratio of 0.25 and calcination temperature of 700°C has been found to be most suitable among all the catalysts developed. Characterization of the catalysts has been done by using X-ray diffraction (XRD), scanning electron microscope (SEM), and thermo-gravimetric anal. (TGA). The input–output model has been developed to correlate exptl. and predicted value of biodiesel yield. Optimization of process parameters has been done using response surface methodol. Various properties and elemental composition of algal bio-oil and biodiesel have been determined and compared with biodiesel. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8COA of Formula: C20H40O2).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.COA of Formula: C20H40O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Characterization of odor-active compounds in three varieties of ciruela (Spondias purpurea L.) fruit was written by Sosa-Moguel, Odri;Pino, Jorge A.;Sauri-Duch, Enrique;Cuevas-Glory, Luis. And the article was included in International Journal of Food Properties in 2018.SDS of cas: 5444-75-7 The following contents are mentioned in the article:

The aroma-active compounds present in tree ripened fruits of ciruela (Spondias purpurea L.) cultivars Chi abal, Campech abal, and Ek abal were isolated by means of simultaneous distillation solvent extraction and solid-phase microextraction and analyzed by gas chromatog.-mass spectrometry. Application of odor activity values (OAV) afforded 22 compounds in higher amounts than their threshold concentrations (OAVs >1). Results of the identification experiments in combination with the OAVs suggested that Me 3-methylbutanoate, Et butanoate, Et 2-methylbutanoate, Et 3-methylbutanoate, Et hexanoate, hexyl acetate, with fruity odor notes; (E)-2-hexenal, (Z)-3-hexen-1-ol, (E)-2-hexen-1-ol, 1-hexanol, and (Z)-3-hexenyl acetate, with grassy odor notes, and limonene (citrus-like) were the potentially important common odorants in all ciruela cultivars. Clear differences in the OAVs of some odorants between each of the cultivars suggested that they contributed to the unique sensory profiles of the individual cultivars. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7SDS of cas: 5444-75-7).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.SDS of cas: 5444-75-7

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Discovery of a Potent and Selective Inhibitor of Cyclin-Dependent Kinase 4/6 was written by Toogood, Peter L.;Harvey, Patricia J.;Repine, Joseph T.;Sheehan, Derek J.;VanderWel, Scott N.;Zhou, Hairong;Keller, Paul R.;McNamara, Dennis J.;Sherry, Debra;Zhu, Tong;Brodfuehrer, Joanne;Choi, Chung;Barvian, Mark R.;Fry, David W.. And the article was included in Journal of Medicinal Chemistry in 2005.Recommanded Product: 763-69-9 The following contents are mentioned in the article:

A pharmacol. approach to inhibition of cyclin-dependent kinases 4 and 6 (Cdk4/6) using highly selective small mol. inhibitors has the potential to provide novel cancer therapies for clin. use. Achieving high levels of selectivity for Cdk4/6, vs. other ATP-dependent kinases, presents a significant challenge. The pyrido[2,3-d]pyrimidin-7-one template provides an effective platform for the inhibition of a broad cross-section of kinases, including Cdks. It is now demonstrated that the modification of pyrido[2,3-d]pyrimidin-7-ones to include a 2-aminopyridine side chain at the C2-position provides inhibitors with exquisite selectivity for Cdk4/6 in vitro. This selectivity profile is recapitulated in cells where the most selective inhibitors create a G₁ block at concentrations up to 100-fold the IC₅₀ for cell proliferation. On the basis of its selectivity profile and pharmacokinetic profile, compound I (PD 0332991) was identified as a drug candidate for the treatment of cancer. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Recommanded Product: 763-69-9).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: 763-69-9

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Evolution of the key odorants and aroma profiles in traditional Laowuzeng baijiu during its one-year ageing was written by Zhu, Lin;Wang, Xinlei;Song, Xuebo;Zheng, Fuping;Li, Hehe;Chen, Feng;Zhang, Yuhang;Zhang, Fuyan. And the article was included in Food Chemistry in 2020.Name: Isopentyl hexanoate The following contents are mentioned in the article:

Changes of key odorants and aroma profiles of Chinese Laowuzeng baijiu during its one-year ageing were determined by HS-SPME-AEDA and direct injection-AEDA (DI-AEDA). Et hexanoate, (E,E)-2,4-decadienal, and 2-phenylethyl acetate showed the highest FD value (486) in all ageing stages. With regards to aroma profiles, fruity, floral, acidic, sweet/honey and cheesy aromas were enhanced during storage, while pickled vegetable, grain and alc. notes weakened during the ageing. Quantitation and OAVs showed that most of the aroma compounds (OAVs > 1), including Et esters, aldehydes, and acids, increased their contents within the same period, whereas nonanal, 2-phenylethyl acetate, Et benzoate, 4-ethylguaiacol, propanol and 3-methyl-1-butanol decreased in content after the storage of 365 days. Simulated aged samples, in which fresh samples were spiked with 18 compounds, were examined by triangle tests, which indicated that the “fruity” compounds were crucial for maintaining the special aroma profile of an aged sample. This study involved multiple reactions and reactants, such as Isopentyl hexanoate (cas: 2198-61-0Name: Isopentyl hexanoate).

Isopentyl hexanoate (cas: 2198-61-0) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Name: Isopentyl hexanoate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics